♪ there you go. come on, let's play! [ male announcer ] there's an easier way to protect your dog from dangerous parasites. good boy. fetch! trifexis is the monthly, beef-flavored tablet that prevents heartworm disease, kills fleas and prevents infestations, and treats hook-, round-, and whipworm infections. treatment with fewer than 3 monthly doses after exposure to mosquitoes may not provide complete hrtworm prevention. the most common adverse reactions were vomiting, itching and lethargy. serious adverse reactions have been reported following concomitant extra-label use of ivermectin with spinosad alone, one of the components of trifexis. prior to administration, dogs should be tested for existing heartworm infection. to learn more about trifexis, talk to your veterinarian, call 888-545-5973 or visit trifexis.com. you don't have to go to extremes to protect your dog from parasites.